Test Web APIs, permissions, and enterprise policy enforcement across all major browsers.
Control how browsers handle JavaScript, cookies, images, popups, and mixed content on your pages.
Test JavaScript support — check JS execution, DOM manipulation, Web Workers, and JIT compilation performance in your browser.
Test cookies online — check cookie read/write, third-party cookies, session cookies, and the CookieStore API.
Test image loading for PNG, JPEG, WebP, AVIF, and SVG formats.
Test browser permission APIs including notifications, clipboard, geolocation, and more.
Test clipboard API online — check clipboard read/write permissions, rich content support, and paste event handling.
Test geolocation API online — check browser location access with standard and high-accuracy GPS modes.
Test the IdleDetector API to detect user and screen idle state.
Access hardware devices like cameras, microphones, USB, Bluetooth, and sensors through browser APIs.
Test your camera online — check webcam access, preview live video, and view resolution and device info in your browser.
Test your microphone online — check mic access, see real-time audio levels, and verify input device info in your browser.
Test screen sharing online — check getDisplayMedia support for screen, window, and tab capture in your browser.
Test network APIs including local network access, server-sent events, WebTransport, cross-tab messaging, and beacons.
Test browser storage and file APIs including IndexedDB, Cache API, File System Access, and file upload/download.
Test file input, drag-and-drop upload, and multiple file selection.
Test File System Access API — open, save, and pick directories from the browser. Check showOpenFilePicker support.
Test IndexedDB online — create databases, run transactions, and verify read/write operations in your browser.
Test media and graphics APIs including WebGL, WebGPU, Web Audio, Picture-in-Picture, and codec support.
Test EyeDropper API online — pick any color from your screen using the browser's native color picker tool.
WebGL test online — check WebGL and WebGL2 support, GPU renderer, vendor info, max texture size, and extensions.
WebGPU support test — check if your browser supports the WebGPU API, view adapter info and GPU device capabilities.
Test security features including Permissions Policy, cross-origin isolation, and Storage Access API.
Test loading HTTP resources (images, iframes, scripts) on an HTTPS page.
Test Permissions Policy online — check which browser features are allowed or blocked by Feature-Policy and Permissions-Policy headers.
Test cross-origin isolation — check COOP, COEP headers, and SharedArrayBuffer availability in your browser.
Test Progressive Web App APIs including service workers, web app manifest, background sync, and badging.
Test push notifications online — check Notification API and Web Push support, request permission, and send test notifications.
Test service worker online — check Service Worker API support, registration status, and active worker lifecycle.
Test web app manifest: detect manifest link, parse properties, and check display mode.
Analyze your browser's capabilities, configuration, and unique fingerprint.
Encoding, hashing, JWT decoding, JSON formatting, and more.
Test cross-origin requests, WebSocket connections, and HTTP headers.
Test links from testsafebrowsing.appspot.com to verify phishing, malware, and download protection.
Test links from demo.smartscreen.msft.net to verify SmartScreen protection.